>If is LANC protocol, what sort of interface chip would I want to use? I have a >few MC1488's around someplace. would they do the trick? You'd need a 1488 for sending, and a 1489 to receive. But you already have a MAX232, and it does both of these for you already! Barry -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads